<template>
    <div>

        <!--顶部滑动条区域-->
        <div id="slider" class="mui-slider">
            <div id="sliderSegmentedControl" class="mui-scroll-wrapper mui-slider-indicator mui-segmented-control mui-segmented-control-inverted">
                <div class="mui-scroll">
                    <a class="mui-control-item mui-active" href="#item1mobile" data-wid="tab-top-subpage-1.html" @tap="getPhotoListByCateId(item.id)">
                        推荐
                    </a>
                    <a class="mui-control-item" href="#item2mobile" data-wid="tab-top-subpage-2.html">
                        热点
                    </a>
                    <a class="mui-control-item" href="#item3mobile" data-wid="tab-top-subpage-3.html">
                        北京
                    </a>
                    <a class="mui-control-item" href="#item4mobile" data-wid="tab-top-subpage-4.html">
                        社会
                    </a>
                    <a class="mui-control-item" href="#item5mobile" data-wid="tab-top-subpage-5.html">
                        娱乐
                    </a>
                    <a class="mui-control-item" href="#item6mobile" data-wid="tab-top-subpage-6.html">
                        科技
                    </a>
                    <a class="mui-control-item" href="#item6mobile" data-wid="tab-top-subpage-6.html">
                        人文
                    </a>
                </div>
            </div>
        </div>
        <!--图片列表区域-->
        <ul class="photo-list">
            <ruoter-link v-for="item in list" :key="itme.id" :to="'/home/photoinfo' + item.id" tag="li">
                <img v-lazy="item.img_url">
                <div class="info">
                    <div class="info-title">{{ itme.title }}</div>
                    <div class="info-body">{{ itme.zhaiyao }}</div>
                </div>
            </ruoter-link>
        </ul>
    </div>
</template>

<script>
    //导入 mui 的js文件
import mui from '../../lib/mui/js/mui.min.js'

export default {
    data() {
        return {
            cates: [],  //所有分类的列表数组
            list: []
        };
    },
    created() {
        this.getAllCategory();
        // 第一次进入，就主动请求所有图片列表的数据
        this.getPhotoListByCateId();
    },
    mounted(){
        // 当组件中的DOM结构被渲染好并放到页面中后，会执行这个  钩子函数
        //初始化滑动组件
        mui('.mui-scroll-wrapper').scroll({
            deceleration: 0.0005
        });
    },
    methods: {
        getAllCategory() {
            this.$http.get("api/getimgcategory").then(result => {
                if(result.body.status === 0) {
                    result.body.message.unshift({ title: "全部", id: 0 })
                    this.cates = result.body.message;
                }
            });
        },
        getPhotoListByCateId(cateId) {
            this.$http.get("api/getimages/" + cateId).then(result => {
                if (result.body.status === 0) {
                    this.list = result.body.message;
                }
            });
        }
    }
};
</script>


<style lang="scss" scoped>
* {
    touch-action: pan-y;
}

.photo-list {
    list-style: none;
    margin: 0;
    padding: 10px;
    padding-bottom: 0;
    li{
        background-color: white;
        text-align: center;
        margin-bottom: 10px;
        box-shadow: 0 0 9px #999;
        position: relative;
        img {
            width: 100%;
            vertical-align: middle;
        }
        img[lazy="loading"] {
            width: 40px;
            height: 300px;
            margin: auto;
        }

        .info {
            color: white;
            text-align: left;
            position: absolute;
            bottom: 0;
            background-color: rgba(0,0,0,0.4);
            max-height: 84px;
            .info-title {
                font-size: 14px;
            }
            .info-body {
                font-size: 13px;
            }
        }
    }
}


</style>